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Lennox SL297UHNV Series - Page 48

Lennox SL297UHNV Series
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
1 -       


2 -        


         
      

          


4 -       
        
       


CONDENSATE TRAP AND PLUG LOCATIONS
(Unit shown in upflow position)
NOTE - In upflow applications where side return
sate trap, filter rack must be installed beyond
condensate trap or trap must be re-located to
avoid interference.
Trap
(same on
right side)
Plug
(same on left side)
1-1/2 in.
FIGURE 35
IMPORTANT
When combining the furnace and evaporator coil
drains together, the A/C condensate drain outlet
must be vented to relieve pressure in order for the
furnace pressure switch to operate properly.
 


  

Upow furnace-

     



Horizontal furnace 





NOTE - In horizontal applications it is recommended
to install a secondary drain pan underneath the unit
and trap assembly.
NOTE - Appropriately sized tubing and barbed tting
may be used for condensate drain. Attach to the
drain on the trap using a hose clamp. See FIGURE
36.
Field Provided Drain Components
Tubing
Hose Clamp
Barbed Fitting
Elbow
FIGURE 36
 
       


-
      

-

-


IMPORTANT
Do not use copper tubing or existing copper
condensate lines for drain line.

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